Tailoring architecture of nanothin hydrogels: Effect of layering on pH-triggered swelling

Veronika Kozlovskaya; Oleksandra Zavgorodnya; Yun Wang; John F. Ankner; Eugenia Kharlampieva

doi:10.1021/mz300661f

Tailoring architecture of nanothin hydrogels: Effect of layering on pH-triggered swelling

Veronika Kozlovskaya, Oleksandra Zavgorodnya, Yun Wang, John F. Ankner, Eugenia Kharlampieva

STS Project Technical Systems

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

We have tailored the internal architecture of ultrathin poly(methacrylic acid) (PMAA) hydrogels from well stratified to highly intermixed by controlling the internal structure in layer-by-layer templates used for hydrogel fabrication. We have found pH-triggered swelling properties of these hydrogels to be significantly affected by hydrogel architecture. Well-stratified hydrogels exhibited a dramatic 10-fold increase in thickness when transitioned between pH = 5 and 7.5, unlike the 2-fold swelling observed in less-organized hydrogels.

Original language	English
Pages (from-to)	226-229
Number of pages	4
Journal	ACS Macro Letters
Volume	2
Issue number	3
DOIs	https://doi.org/10.1021/mz300661f
State	Published - Mar 19 2013

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AU - Ankner, John F.

AU - Kharlampieva, Eugenia

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Tailoring architecture of nanothin hydrogels: Effect of layering on pH-triggered swelling

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